What is the low beam headlight bulb size for a 2016 Buick LaCrosse?

The 2016 Buick LaCrosse uses a HID-D3S LED bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2016 Buick LaCrosse?

The high beam bulb size for the 2016 Buick LaCrosse is HID-D3S LED.

Why are my 2016 Buick LaCrosse headlights dim?

Dim headlights on a 2016 Buick LaCrosse can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a HID-D3S LED LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2016 Buick LaCrosse fog light?

The 2016 Buick LaCrosse uses a H8 LED bulb for the fog light position.

Is the 2016 Buick LaCrosse single or dual beam?

The 2016 Buick LaCrosse uses a single bulb (dual filament) headlight system. This means one bulb controls both high and low beams.

Can I install LED bulbs on my 2016 Buick LaCrosse?

Yes, the 2016 Buick LaCrosse comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a HID-D3S LED LED conversion kit for the low beams.

Does the 2016 Buick LaCrosse have fog lights?

Yes, the 2016 Buick LaCrosse takes a H8 LED bulb for the fog light position.

Did the 2016 Buick LaCrosse change headlight bulb sizes from the previous year?

No — the 2016 Buick LaCrosse uses the same bulb sizes as the 2015 model. This configuration has been consistent across the 2015–2016 generation.

Is the 2016 Buick LaCrosse the first or last year to use HID-D3S LED bulbs?

The 2016 Buick LaCrosse is the last year in the 2015–2016 generation to use the HID-D3S LED bulb for the low beam headlight.

How do I change the headlight on a 2016 Buick LaCrosse?

Turn off the vehicle and open the hood. Locate the headlight assembly from behind, remove the dust cover or retaining clip, disconnect the wiring harness, twist the old HID-D3S LED bulb counter-clockwise to remove it, then insert the new bulb and reassemble. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

Are LED headlights legal for a 2016 Buick LaCrosse?

LED bulbs used off-road or in auxiliary lights are legal everywhere. For on-road headlight use, legality varies by state. Many states allow LED retrofits as long as the beam pattern meets DOT standards. For the best legal compliance, choose a DOT-approved HID-D3S LED LED kit that is designed as a direct replacement and produces a proper cutoff pattern without excessive glare.

How much does it cost to replace 2016 Buick LaCrosse headlights?

A pair of HID HID-D3S LED bulbs costs $50 to $150. If you have a shop do the work, expect an additional $20 to $50 in labor per bulb. Replacing them yourself at home saves the labor cost and usually takes under 30 minutes.

What is the difference between halogen and LED for a 2016 Buick LaCrosse?

Halogen bulbs produce a warm yellow light (around 3200K), last 500 to 1000 hours, and draw more power. LED bulbs emit a brighter white light (5000-6000K), last 25,000+ hours, and use less energy. LED upgrades for the HID-D3S LED position are available as direct plug-and-play replacements.

The 2016 Buick LaCrosse is the last model year to use this bulb configuration (2015–2016).

Fitment Guaranteed for 2016 Buick LaCrosse

What Size Bulbs Does a 2016 Buick LaCrosse Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Moderate (Dust covers often present)

Est. Replacement Cost

$50 - $150 (HID System)

What Lighting System Does the 2016 Buick LaCrosse Have?

Owners of the 2016 Buick LaCrosse will find a total of 14 lighting elements throughout the vehicle's exterior. It features an extensive lighting system powered by premium factory HID/Xenon technology utilizing D3S projector housings for high-intensity output. This model belongs to the late years of the LaCrosse's 2005-2019 production span.

Can You Put LED Bulbs in a 2016 Buick LaCrosse?

The 2016 Buick LaCrosse is already equipped with factory D3S HID/Xenon headlights. Since HID technology already provides exceptional brightness, we recommend staying with high-quality OEM replacement bulbs rather than attempting an LED retrofit for the primary headlights. However, the H8 LED fog lights are typically halogen and are excellent candidates for an LED upgrade to match the color temperature of your HID headlights.

2016 Buick LaCrosse Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	HID-D3S LED	Buy HID-D3S LED →
High Beam	HID-D3S LED	Buy HID-D3S LED →
Fog Light	H8 LED	Buy H8 LED →
Brake Light	LED Bulb	Buy LED Bulb →
Side Marker	7443	Buy 7443 →
Turn Signal Front	7444NA LED	Buy 7444NA LED →
Turn Signal Rear	7440NA LED	Buy 7440NA LED →
License Plate	2825	Buy 2825 →
Map Light	2825	Buy 2825 →
Parking Light	7444NA	Buy 7444NA →
Reverse Light	921K	Buy 921K →
Trunk Light	LED Light	Buy LED Light →
Daytime Running	7443	Buy 7443 →
Door Light	W5W	Buy W5W →

How do the 2016 Buick LaCrosse's bulbs compare to other years?

The 2016 Buick LaCrosse uses the same bulbs as the 2015 model.

The 2017 model switched to a different bulb configuration.

This bulb configuration covers the 2015–2016 model years. ← 2015 2017 →

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Other LaCrosse Years

2019 2018 2017 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005

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